fixes checkbox not working when directly clicking on it
fixes checkbox not working when directly clicking on it

auricgoldfinger/cgeo,cgeo/cgeo,cgeo/cgeo,rsudev/c-geo-opensource,S-Bartfast/cgeo,matej116/cgeo,tobiasge/cgeo,auricgoldfinger/cgeo,cgeo/cgeo,tobiasge/cgeo,matej116/cgeo,rsudev/c-geo-opensource,auricgoldfinger/cgeo,S-Bartfast/cgeo,S-Bartfast/cgeo,rsudev/c-geo-opensource,tobiasge/cgeo,cgeo/cgeo,matej116/cgeo